Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Puppis |
Right ascension | 07h 56m 51.53900s [1] |
Declination | −22° 52′ 48.4340″ [1] |
Apparent magnitude (V) | 4.20 [2] |
Characteristics | |
Spectral type | F7/8 II [2] |
U−B color index | +0.44 [3] |
B−V color index | +0.72 [3] |
Astrometry | |
Radial velocity (Rv) | +13.30 [4] km/s |
Proper motion (μ) |
RA: −30.42
[1]
mas/
yr Dec.: +11.49 [1] mas/ yr |
Parallax (π) | 6.25 ± 0.23 mas [1] |
Distance | 520 ± 20
ly (160 ± 6 pc) |
Absolute magnitude (MV) | −1.82 [2] |
Details | |
Mass | 2.7 [5] M☉ |
Luminosity | 515 [2] L☉ |
Surface gravity (log g) | 1.99 [6] cgs |
Temperature | 5,868 [6] K |
Metallicity [Fe/H] | +0.09 [6] dex |
Rotational velocity (v sin i) | 13.8 [7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
11 Puppis is a single [9] star in the southern constellation of Puppis, located approximately 522 light years away based on parallax. [1] It has the Bayer designation j Puppis; 11 Puppis is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-white star with an apparent visual magnitude of 4.20. [2] It is moving further from the Earth with a heliocentric radial velocity of +13.3 km/s. [4]
This is an evolved bright giant star with a stellar classification of F7/8 II. [2] The spectrum displays a deficit of carbon, an excesses of nitrogen, and a high abundance of lithium. [5] The first two anomalies suggest the giant has passed through a deep convection stage that would have also exhausted the lithium supply, indicating the current lithium abundance is of recent production. The star has 2.7 [5] times the mass of the Sun and is radiating 515 [2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,868 K. [6]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Puppis |
Right ascension | 07h 56m 51.53900s [1] |
Declination | −22° 52′ 48.4340″ [1] |
Apparent magnitude (V) | 4.20 [2] |
Characteristics | |
Spectral type | F7/8 II [2] |
U−B color index | +0.44 [3] |
B−V color index | +0.72 [3] |
Astrometry | |
Radial velocity (Rv) | +13.30 [4] km/s |
Proper motion (μ) |
RA: −30.42
[1]
mas/
yr Dec.: +11.49 [1] mas/ yr |
Parallax (π) | 6.25 ± 0.23 mas [1] |
Distance | 520 ± 20
ly (160 ± 6 pc) |
Absolute magnitude (MV) | −1.82 [2] |
Details | |
Mass | 2.7 [5] M☉ |
Luminosity | 515 [2] L☉ |
Surface gravity (log g) | 1.99 [6] cgs |
Temperature | 5,868 [6] K |
Metallicity [Fe/H] | +0.09 [6] dex |
Rotational velocity (v sin i) | 13.8 [7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
11 Puppis is a single [9] star in the southern constellation of Puppis, located approximately 522 light years away based on parallax. [1] It has the Bayer designation j Puppis; 11 Puppis is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-white star with an apparent visual magnitude of 4.20. [2] It is moving further from the Earth with a heliocentric radial velocity of +13.3 km/s. [4]
This is an evolved bright giant star with a stellar classification of F7/8 II. [2] The spectrum displays a deficit of carbon, an excesses of nitrogen, and a high abundance of lithium. [5] The first two anomalies suggest the giant has passed through a deep convection stage that would have also exhausted the lithium supply, indicating the current lithium abundance is of recent production. The star has 2.7 [5] times the mass of the Sun and is radiating 515 [2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,868 K. [6]